The rookie Chargers wide receiver backed the offense 15 yards in the third quarter when penalized for taunting. The discretion came after Allen caught a curl route for 13 yards and did some chattering afterward. He confirmed Wednesday what a source said he told Dolphins safety Jimmy Wilson after the play: "Hit me harder."

While admitting surprise upon seeing the flag, Allen added he was in the wrong because it was thrown.

He had lunged forward after the reception into the arms of Dolphins cornerback Nolan Carroll and then Wilson. When Allen popped up from the tackle, the third-round pick leaned forward to deliver Wilson the message, maybe inches from the defensive back's face mask, and conversed further with Wilson while backpedaling toward the Chargers huddle.

Allen said that, to his recollection, he didn't say anything beyond, "Hit me harder," but would do things differently if he could.

"I probably would have said it walking away," Allen said.

The 21-year-old caught three passes for 45 yards. He also gave a spark in the return game, taking two punts for 34 yards. His 21-yard return in the second quarter is tied for the Chargers' longest this season; he had a return of equal length against the Raiders. The 34 yards in a game is a Chargers season high.

Allen, forced to exit Sunday in the fourth quarter with a right knee injury, was a full participant in Wednesday's practice. He is expected to start this Sunday in Kansas City.